mirror of
https://github.com/wang-bin/QtAV.git
synced 2026-10-26 10:10:28 +08:00
wang-bin
14ba2f85c5
Changelog: - Add QtAVWidgets module contains widget based renderers, video preview widget - QtAV module only depends on QtCore and QtGui - Improve audio output API - Simplify deployment on OSX. Deploy sdk from release packages without build. - Improve seekable detection - Fix noise audio if volume increased - Fix noise and wrong playback speed for wmv videos - Preview is more accurate - Do not copy AVPacket but use reference count. - Faster audio track switch - Reopen audio output only if audio format changed - VideoFrame: new API for converting to another format or QImage - OpenGL VAO, VBO support. - QML * Fix some crashes in QQuickItemRenderer * Add FBO item renderer and use the same code path as other opengl renderers * timeout property - player and QMLPlayer example * player: real time preview on progress bar * Fast seek and display if seek shortcut is pressed and hold
43 lines
2.2 KiB
Markdown
43 lines
2.2 KiB
Markdown
Since QtAV 1.3.1, you can configure how to build QtAV in a easier way.
|
|
|
|
When running qmake, qmake will do some tests to check the building environment and the features can be enabled. The default behavior is to check all the features in both `$$EssentialDepends` and `$$OptionalDepends`(see QtAV.pro) and to build all parts in source tree including examples, tests. Now you can simply select what you want to check and build using a *user.conf* in QtAV source directory.
|
|
|
|
|
|
Disable Features Manually
|
|
=========================
|
|
Currently features in `$$EssentialDepends` will always be checked: avutil, avcodec, avformat, swscale, swresample, avresample, gl. Features in `$$OptionalDepends` will also be checked by default.
|
|
|
|
Features in `$$OptionalDepends` can be disabled by adding a CONFIG value in *QtAV_SRC_DIR/user.conf*(create it if not exists). For example, to disable vaapi, just add:
|
|
|
|
CONFIG += no-vaapi
|
|
|
|
All options available are: no-openal, no-portaudio, no-direct2d, no-gdiplus, no-dxva, no-xv, no-vaapi, no-cedarv.
|
|
|
|
|
|
Disable config.tests
|
|
====================
|
|
|
|
config.tests will check what features QtAV can support. It may takes a few seconds. Some you may skip these checking to save time. You can add
|
|
|
|
CONFIG += no_config_tests
|
|
|
|
in *QtAV_SRC/user.conf* to disable it then qmake will be faster. But you then must enable the features you want manually in *user.conf*. All features available are `$$OptionalDepends`. For example, to enable *avresample*, add
|
|
|
|
CONFIG += config_avresample
|
|
|
|
in *user.conf*.
|
|
|
|
Link Against Static FFmpeg
|
|
==========================
|
|
|
|
It is supported since 1.4.2. You can add `CONFIG += static_ffmpeg` in QTAV_BUILD_DIR/.qmake.cache. Additional link flags will be added. Only ffmpeg build with QtAV/script/build_ffmpeg.sh is tested.
|
|
|
|
Old GLibc Compatibility
|
|
======================
|
|
|
|
QtAV built from a newer linux system like ubuntu 14.04 may not work on old system like ubuntu 12.04 because of some symbols is missing. For example, `clock_get_time` is in glibc>=2.17 and librt. An convenience option is added since 1.4.2. Just add `CONFIG += glibc_compat` in QTAV_BUILD_DIR/.qmake.cache
|
|
|
|
|
|
TODO
|
|
====
|
|
more flexible configuration, such as build path, blablabla. |